Dundalk Marine Terminal Remediation Community Participation Working - - PowerPoint PPT Presentation

January 8, 2014 Dundalk Marine Terminal Remediation Community Participation Working Group Presentation

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• Corrective Measures Implementation Schedule updated

quarterly in 2013; submitted to MDE

• 13th Street Storm Drain Rehabilitation Project

Construction Completion Report submitted to MDE in June 2013

• Supplemental Data Report for the Heave Investigation

and Minimization Study submitted to MDE in June 2013

• Continued monthly coordination calls with MDE

Update on Remedy Implementation

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MDE provides oversight of Remedy implementation

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Update on Construction Activities

• Design of truck wash station and

storage tank complete; construction scheduled for 2014

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Remedy implementation on schedule / maintenance on-going

A storage tank will be added to existing tanks

• All 15th Street Storm Drain vault

installations complete

15th street storm drain relining in progress

• Storm Drains relined
• 13th Street, 13.5 Street: performing post-

construction inspection and maintenance

• Phases 1 and 2 of 15th Street relining

complete; Phase 3 scheduled for 2014

Installation of manhole at 15th Street storm drain

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Air

• Monitoring of air at perimeter of Terminal since 2007;

no detections of hexavalent chromium from COPR in perimeter air monitors

Continued Monitoring and Maintenance

Groundwater

• Groundwater is monitored on semi-annual basis in 34 wells located at

perimeter of COPR fill area; results confirm that hexavalent chromium is not leaving site boundary in groundwater at unacceptable levels

Monitoring programs measure effectiveness of remedy

Storm water

• Storm water is monitored quarterly from 12 storm drain outfalls and outfall from

treatment plant; final remedy addresses storm water

Drinking Water

• Drinking water is routinely monitored; no detections of hexavalent chromium in

drinking water at Terminal

Surface Cover

• On-going Surface Cover inspection program for COPR

fill area; 30 acres of surface cover repaired since 2005

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Continued Success

• Visual inspections and routine maintenance of storm

drains demonstrate effectiveness of containment

• Air monitoring program demonstrates no COPR being

transported through the air

• Demonstrated effectiveness of surface cover program

and engineering controls

• Semi-annual groundwater sampling continues to show

no off-site movement of hexavalent chromium

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2013 2014 2015

Storm Drain Repair Schedule

15th Street Storm Drain Repair Clean & Inspect 14th Street Storm Drain Repair 12th Street Storm Drain Repair 12.5th Street Storm Drain Repair Clean & Inspect Clean & Inspect Clean & Inspect

Schedule submitted to MDE